missing metadata for currently committed sequence number (%d

Error message

missing metadata for currently committed sequence number (%d)

What it means

The requested sequence equals the currently committed sequence, but when lifecycle tries to deserialize the metadata of the committed definition for the namespace, no metadata exists. This indicates inconsistent ledger state — a committed sequence should always have stored metadata.

Source

Thrown at core/chaincode/lifecycle/lifecycle.go:454

	}

	if requestedSequence > currentSequence+1 {
		return errors.Errorf("requested sequence %d is larger than the next available sequence number %d", requestedSequence, currentSequence+1)
	}

	if err := ef.SetChaincodeDefinitionDefaults(chname, cd); err != nil {
		return errors.WithMessagef(err, "could not set defaults for chaincode definition in channel %s", chname)
	}

	privateName := fmt.Sprintf("%s#%d", ccname, requestedSequence)

	if requestedSequence == currentSequence {
		metadata, ok, err := ef.Resources.Serializer.DeserializeMetadata(NamespacesName, ccname, publicState)
		if err != nil {
			return errors.WithMessage(err, "could not fetch metadata for current definition")
		}
		if !ok {
			return errors.Errorf("missing metadata for currently committed sequence number (%d)", currentSequence)
		}

		definedChaincode := &ChaincodeDefinition{}
		if err := ef.Resources.Serializer.Deserialize(NamespacesName, ccname, metadata, definedChaincode, publicState); err != nil {
			return errors.WithMessagef(err, "could not deserialize namespace %s as chaincode", ccname)
		}

		if err := definedChaincode.Parameters().Equal(cd.Parameters()); err != nil {
			return errors.WithMessagef(err, "attempted to redefine the current committed sequence (%d) for namespace %s with different parameters", currentSequence, ccname)
		}
		// it might be the case that some organization just installed
		// the chaincode and now would like to approve, therefore we
		// need to check to distinguish the case. hence need to read from
		// the orgState metadata and see whenever this is the case
		redefine, err := ef.isAttemptToRedefine(privateName, packageID, requestedSequence, cd, orgState)
		if err != nil {
			return err
		}

View on GitHub (pinned to 2736b63f8f)

Solutions

Verify ledger consistency across peers; resync or rebuild the peer's state database from the block store
Compare with other peers' committed state to confirm which peer is corrupted
If the intent was to update, approve with sequence+1 rather than re-using the committed sequence

Defensive patterns

Strategy: try-catch

Validate before calling

// Verify committed definition metadata exists before re-approving at same sequence
if def.Sequence == queryCommittedSequence(ch, ccname) {
    _, ok, _ := serializer.DeserializeMetadata(lifecycle.NamespacesName, ccname, publicState)
    if !ok { return fmt.Errorf("committed sequence %d has no metadata; peer state may be corrupt", def.Sequence) }
}

Try / catch

err := ef.ApproveChaincodeDefinitionForOrg(...)
if err != nil && strings.Contains(err.Error(), "missing metadata for currently committed sequence") {
    // escalate: peer state likely inconsistent; rebuild state DB or use a healthy peer
}

Prevention

Monitor peer state DB consistency after restores/backups
Avoid re-approving at an already committed sequence; bump sequence for changes
Cross-check committed definitions across peers to detect drift early

When it happens

Trigger: Approving a definition with the same sequence as the committed one while public state lacks metadata for the namespace — e.g., corrupted state, a namespace committed by a different component, or a truncated/odd ledger DB after restore.

Common situations: Peers restored from inconsistent backups; CouchDB/LevelDB state drift; mixing legacy (lscc) namespaces with new lifecycle expectations.

Related errors

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/a527a06cfb672f19. Report an issue: GitHub.